LU62783A1 - - Google Patents
Info
- Publication number
- LU62783A1 LU62783A1 LU62783DA LU62783A1 LU 62783 A1 LU62783 A1 LU 62783A1 LU 62783D A LU62783D A LU 62783DA LU 62783 A1 LU62783 A1 LU 62783A1
- Authority
- LU
- Luxembourg
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
- H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Protection Of Transformers (AREA)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7009178A FR2081177A6 (xx) | 1970-03-13 | 1970-03-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
LU62783A1 true LU62783A1 (xx) | 1971-10-13 |
Family
ID=9052256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
LU62783D LU62783A1 (xx) | 1970-03-13 | 1971-03-12 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3731148A (xx) |
BE (1) | BE764028A (xx) |
DE (1) | DE2112065C2 (xx) |
FR (1) | FR2081177A6 (xx) |
GB (1) | GB1334404A (xx) |
LU (1) | LU62783A1 (xx) |
NL (1) | NL168378C (xx) |
ZA (1) | ZA711665B (xx) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848159A (en) * | 1973-06-18 | 1974-11-12 | Airpax Electronics | Ground fault detector circuit with feedback to sensor |
US4024436A (en) * | 1973-11-30 | 1977-05-17 | Syracuse Electronics Corporation Subsidiary Of Pass & Seymour, Inc. | Ground fault protective circuitry |
US3936699A (en) * | 1973-11-30 | 1976-02-03 | Pass & Seymour, Inc. | Ground fault protective circuitry |
US3962606A (en) * | 1974-10-09 | 1976-06-08 | General Signal Corporation | Sensor for a ground fault circuit interrupter |
US4015169A (en) * | 1975-03-14 | 1977-03-29 | Westinghouse Electric Corporation | Two pole ground fault circuit interrupter with improved rectified supply and transient suppression for a trip circuit |
US4028736A (en) * | 1975-12-19 | 1977-06-07 | Robertshaw Controls Company | Motor protection circuit unit |
FR2422276A1 (fr) * | 1978-04-07 | 1979-11-02 | Saparel | Dispositif de protection contre les courants de defaut a la terre |
FR2430680A1 (fr) * | 1978-07-05 | 1980-02-01 | Saparel | Detecteur de courant de defaut continu ou alternatif |
US4574324A (en) * | 1983-10-05 | 1986-03-04 | Pass & Seymour, Inc. | Ground fault circuit interrupter |
US4679111A (en) * | 1985-11-12 | 1987-07-07 | Westinghouse Electric Corp. | Resistance to ground checker |
DE69332495T2 (de) * | 1992-09-09 | 2003-07-03 | Kabushiki Kaisha Tec, Shizuoka | Entwicklungsgerät |
JP3737372B2 (ja) * | 2001-02-26 | 2006-01-18 | 株式会社日立製作所 | 変流器入力型電源装置 |
US6671485B2 (en) | 2001-12-21 | 2003-12-30 | Kabushiki Kaisha Toshiba | Image forming apparatus |
US6694111B1 (en) | 2002-08-12 | 2004-02-17 | Kabushiki Kaisha Toshiba | Image forming apparatus, and developing device and method used in the same |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1060643A (en) * | 1963-09-12 | 1967-03-08 | English Electric Co Ltd | Electrical fault detection arrangement |
GB1107879A (en) * | 1964-04-17 | 1968-03-27 | J A Crabtree Proprietary Ltd | Improvements in or relating to earth leakage protection devices |
US3555359A (en) * | 1967-08-07 | 1971-01-12 | Hubbell Inc Harvey | Circuit protective device |
US3525018A (en) * | 1968-06-27 | 1970-08-18 | Hubbell Inc Harvey | Ground leakage current interrupter |
-
1970
- 1970-03-13 FR FR7009178A patent/FR2081177A6/fr not_active Expired
-
1971
- 1971-03-10 BE BE764028A patent/BE764028A/xx not_active IP Right Cessation
- 1971-03-12 NL NLAANVRAGE7103304,A patent/NL168378C/xx not_active IP Right Cessation
- 1971-03-12 DE DE2112065A patent/DE2112065C2/de not_active Expired
- 1971-03-12 LU LU62783D patent/LU62783A1/xx unknown
- 1971-03-15 ZA ZA711665A patent/ZA711665B/xx unknown
- 1971-03-15 US US00124639A patent/US3731148A/en not_active Expired - Lifetime
- 1971-04-19 GB GB2411371*A patent/GB1334404A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2112065A1 (de) | 1971-09-23 |
NL7103304A (xx) | 1971-09-15 |
DE2112065C2 (de) | 1982-08-26 |
GB1334404A (en) | 1973-10-17 |
ZA711665B (en) | 1971-12-29 |
US3731148A (en) | 1973-05-01 |
BE764028A (fr) | 1971-09-10 |
NL168378C (nl) | 1982-03-16 |
FR2081177A6 (xx) | 1971-12-03 |